Throttling device for hydrocarbon-engines.



J. L. SCHINDLER.

THROTTLING DEVICE FOR HYDROGARBON ENGINES APPLICATION FILED MAY 15,1913.

Patented Ma1x3, 1914 wiM womw JOHN L. SGHINDLER, 0F FRIEND, OREGON.

THROTTLING DEVICE FOR HYDROCARBON-ENGINES.

Specification of Letters Patent.

Patented Mar. 3, 191%.

Application filed May 15, 1913. Serial No. 767,817.

To all whom it may concern:

Be it known that I, Join: L. Scnmnnnn, a. citizen of the United States,residing at Friend, in the county of VVasco and State of Oregon, haveinvented certain new and useful Improvements in 'lhrottling Devices forIIydrocarbon-Engines, of which the following is a specification.

Under certain conditions of service at the present time, it. isdesirable that motor propelled vehicles be subject to definite controlwith'respect to speed whereby when the vehicle or its motor reaches apredetermined maximum speed any excess will be automatically cut off.Thus the operator of a motor vehicle may be forcibly required to keepwithin specitied limits of speed by the provision of means for cuttingoff the volume of charge of gas admitted to the engine when such limitis passed and to this end -my invention relates to that class of chargecontrolling devices adapted to be employed in conjunction vwithhydrocarbon engines, being preferably interposed between the carburetorand. the engine in the. intake manifold. I

My invention contemplates the provision of a governor operable by thesuction of the charge through the manifold to auton'latically operate athrottle valve, when the pressure of the suction through 'the manifoldreaches a predetermil'ied point. manually operable means cooperatingwith the go\"ernor aforesaid whereby the sensitiveness of its action mayreadily be controlled according to the predetermined limit of speeddesired.

Figure l is a view in elevation showing the application of my throttlingdevice to a hydrocarbon engine. .Fig. 2 is a longitudinal sectionalview'through the device alone. F 3 is a transverse sectional view on theline 3-3.01? Fig. 2. Fig. 4 is a transverse sectional view on the line4;-4 of Fig. 2. Fig; 5 is a View in elevation partly broken away andshowing a slightly modilied form of construction of the shell casing formy device.

Throughout the following detail description, and on the several figuresof the drawings, similar parts are referred to by like referencecharacters.

Specifically describing the preferred embodiu'icnt of my device, andreferring to the drawing, the numeral 1. designates a shell or casingwhich for purposes of convenient access to the interior is preferablycomposed of twosections having threaded connection as indicated at 2. Asshown in the drawing the ends of the casing 1. taper, though it will heunderstood that 1 need not be limited to the exact shape orconfiguration of this particular feature of the device.

Mounted within the casing 1 and atone end of thesame, on alongitudinally extending shaft 3. is a fan 4- constituting a governor aswill be more a n'iarent as this description proceeds. the fan beingfixedly secured to' the shaft 3 which has its bearing in a suitabletranxversc bar 5 adjacent one end of the casing, the other end of saidshaft being similarly mounted for rotation in the hearing (3 at theopposite end portion of the shell. The bearing member (3 just mentionedis suitably formed to constitute a partial closure of the passagethrough the casing 1 and fixedly mounted upon the shaft 3 directlyadjacent this hearing 0. and preferably at the outer side of the same,is a shutter 7 adapted when partially rotated to more or less close thepassage through the casing in its cooperation with the bearing 0aforesaid. peaking more specifically, it will be understood thatapproximately a quarter turn of the shutter or valve 7 will besuiiicient to entirely close this passage when complete throttling ofthe charge being drawn through the same is effected.

Extending transversely through the easing or shell 1 is an operating rod8 terminating exterior to the casing in a crank handle 9 formanipulation of the rod, said rod the bearing bar 5.

having secured thereto Within the casing a worm 10 with which meshes apinion l1 loosely mounted upon the shaft 3 adjacent To this pinion 11 isfastened one end of a spiral spring 12 which surrounds the shaft 3 andis in turn secured at its other end to said shaft, whereby upon turningthe rod 8 tension will be placed upon the shaft and the parts fixedthereto, the tendency being to hold the shut- :ter or valve in itsnormally open position permitting passage of the fuel or charge throughthe casing. It will be noted by reference to Fig. 3 that the bearing isprefis erably formed with opposing projections or stops 13 which areadapted to limit the ro' "tative movement of the valve both in its openand closed positions.

Describing the operation of the invention and illustrating itsadaptation, it is to' be understood that the casing 1 with its com tentsis to be disposed in the intake manifold ll of a hydrocarbon engine 15adjacent the carbureter 16. It will be further obvious that the intakemanifold itself may be employed to constitute the casing for holding thegovernor at, the valve 7 and other cooperating parts it being my idea,however, to employ a casing such herein described in order that thedevice may be applied to engines not initially furnished with thethrottle control. As the mixture is drawn by the engine Tom thecarburetor through the intake manifold letit passes through the casing land the opening 17 at the valve end of the same. hen the suction createdby the speed at which the engine is operated reaches a pressure which issufli'cient to overcome the tension of the spring 12 on the aft 3 thegovernor will be operated, because of its fan-like formation, or tend torevolve and in its revolution it carries the valve 7 around. so as toreduce the operative area of the openings 13'' in the passage. When thepre sure becomes suflicient to entirely overcome the tension of thespring the valve '7 will move to a position against the stops therebyentirely throttling the engine and forcibly reducing the speed until thesuction in the pipe reduces and allows the shutter to again open thepassage through the n'ianifold. The turning or manipulation of theoperating rod 8 controls the amount of tension placed upon the shaft andnecessarily the time at which the pressure commences to opemte the fanand its cooperating valve 7, In this manner it will. be. obvious thatthe device may be set to 4 throttle the speed of the engine atpredeterof speed it would only be necessary to ma nipulate the operatingrod 8 and thereby place a predetermined amount of tension upon the shaft3 through the medium of the spring 12. If subsequently the operatorexceeded the speed limit his engine would be automatically throttledthereby effecting an advantageous as well as forcible control of speed.Another advantage will be apparent in that racing of the engine would beeliminated by the use of this device beyond a certain speed.

The simplicity of the. throttling device is another advantage as it maybe very cheaply manufactured and installed upon any hydrocarbon enginein cooperation with its intake manifold. To facilitate the installationin the manifolds of certain engines, it

1. In throttling devices for hydrocarbon.

engines, the combination of a casing, a longitudinal shaft mounted insaid casing, a throttling valve fixedly secured to one end of the shaft,a governor fixedly secured to the shaft at its other end in spacedrelation to the valve and adapted to be operated by suction through thecasing whereby the valve may be moved to regulate the operative area ofthe opening through said passage, a manually operable rod extendingtransversely through the casing, and a spring mounted upon the shaftintermediate the valve and governor and operably connected with themanually operable rod whereby to place said spring under predeterminedtension normally preventing 210- tion of the governor and valve until apredetermined pressure of suction through said passage is reached.

In throttling devices for hydrocarbon engines, the combination of acasing, a longit-udinal shaft mounted in said casing, a frame removablyinserted in the casing and comprising spaced bearings for said shaft,one of said bearings constituting a partial closure for the passagethrough the cas ing, a fan governor fixedly mounted at one end of saidshaft, and a throttle valve fixedly secured to the other end of theshaft, said valve being adapted to cooperate with the bearing closureaforesaid to regulate the operative area of the opening through thecasing, a spring surrounding the shaft between the fan and the valve andconnected to said shaft at one end, a pinion loosely mounted upon saidshaft and connected with said spring at the other end, and amanipulating rod extending transversely of the eas ing and having; aworm thereon to engage the pinion aforesaid whereby to place the springunder tension upon rotation of the manipulating rod.

in testimony whereof I afiix my signature in preeence of two witnesses.I

JOHN L, SO'i'IINDLEH.

imes-see J. 1*). JOHNSON, THEO. BUSKUHL.

